Coming of Age in the Aquarian

Mankind is evolving in mind as well as in body. Indeed the body is a reflection of mind or consciousness.

As we enter the 2000-year span of the Age of Aguarius, we find that the ground rules are subtly different from those of the preceeding age, Pisces. Many changes since the turn of the century in 1900 indicate greater emphasis on a scientific approach to life, choosing a way of life that is more suited to one's personal needs, and redefining roles, such as God-self, man-woman, parent-child, society-individual, and so on.

To me life must be a conscious journey to have meaning. But mind must be balanced with heart.

Recorded here in this manifestation of the Aquarian age, the web-log, are personal observations, stuff found, helpful information, and the occasional point of illumination. It seems to me presenting topics and tidbits related to Aquarius, the sign, will help define what to expect in this brave new age. Also, I hope to find indicators of how the new Age is unfolding in the world around us.

If you feel like commenting, please do.

DISCLAIMER: I reserve the right to be silly sometimes, to sometimes completely miss the point, to be unfocused until I'm focused and to occasionally speak from atop a soapbox.

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Apr

Sweet induction

This is part 2 of my "things electrical" series.

Sweet induction

Before we get into the specifics of induction and inductors, transformers and windings, let me give a word to why talk about them. It seems to me that the aura is an example of induction in action and some forms of telepathy may be due to induction. The chakras may use induction to step up and step down energy, but I'm at a loss to explain how.

An inductor is an insulated, current-carrying wire wrapped around a magnetic or air core (think of thread on a spool). Because electricity (more properly electro-magnetic radiation or force) has electrical and magnetic components, current moving through the wire generates a magnetic field. When an inductor is placed near a second inductor, voltage is induced in it, that is, the current flowing in the first inductor causes current to flow in the second inductor. The two inductors don't have to have a common magnetic core, but it's more efficient. For this to work, something has to be changing: the current may be alternating, the magnetic core may be changing position, the voltage may be switched on and off repeatedly.

The inductor with the greater number of windings, or turns, will produce the larger voltage. If the inductor on the incoming side of the circuit has more turns, the voltage is stepped down by the second inductor; if the inductor on the incoming side of the circuit has fewer turns, the voltage is stepped up.

As an example, look at the inductor in a cathode-ray tube (CRT) or television. The incoming line voltage, usually 120 volts AC is converted to approximately 30 volts DC, then stepped up by the fly-back transformer to about 20,000 volts (depending on frequency) to produce a picture on the tube. A picture of a flyback transformer from Andy's high voltage page at geocities is included.

Flyback transformer illustration with circuit notation

The following diagrams illustrate the methods for inducing electromagnetic force (EMF). Loop A is the conducting loop; causing a change in the flux linkage induces a change in current level. If we know the value of the resistor and the value of the incoming voltage, we can calculate the current (I = V/R).

	Changing the current in loop B, by means of a variable resistor, induces a current in A.
Changing the positions of the coils induces a current.
	Open and close a switch.
Push/pull a magnet with respect to the loop. (Induced current is shown by pulling the magnet away.)